Title :
Computation of EM effects on large biological bodies by an iterative moment method
Author :
Wang, J.J.H. ; Dubberley, J.R.
Author_Institution :
Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
An iterative moment method algorithm using a conjugate gradient method is developed for a three-dimensional arbitrarily shaped dielectric or biological body. The algorithm has a restart feature which allows the operator to pause at a preset stage and then resume the iteration in a continuous way, thus making the computation of large bodies a controlled and measured process with minimum cost and time for a desired accuracy. It was observed that the effect of initial guess has only a small effect, while the direction vectors g/sup (0)/ and correction magnitude A/sup (0)/ are much more important in achieving a faster rate of convergence.<>
Keywords :
biological effects of radiation; iterative methods; EM effects; conjugate gradient method; correction magnitude; direction vectors; iterative moment method; large biological bodies; minimum cost; restart feature; three-dimensional arbitrarily shaped dielectric; Biology computing; Costs; Dielectric measurements; Gradient methods; Iterative algorithms; Iterative methods; Moment methods; Process control; Resumes; Time measurement;
Conference_Titel :
Microwave Symposium Digest, 1989., IEEE MTT-S International
Conference_Location :
Long Beach, CA, USA
DOI :
10.1109/MWSYM.1989.38698
